// Copyright (c) 2010 Satoshi Nakamoto
// Copyright (c) 2009-2014 The Bitcoin developers
// Copyright (c) 2014-2015 The Dash developers
// Copyright (c) 2015-2017 The PIVX developers
// Copyright (c) 2018-2019 The esbcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.

#include "rpcclient.h"

#include "rpcprotocol.h"
#include "ui_interface.h"
#include "util.h"

#include <set>
#include <stdint.h>

#include <boost/algorithm/string/case_conv.hpp> // for to_lower()
#include <univalue.h>

using namespace std;

class CRPCConvertParam
{
public:
    std::string methodName; //! method whose params want conversion
    int paramIdx;           //! 0-based idx of param to convert
};
// ***TODO***
static const CRPCConvertParam vRPCConvertParams[] = {
    {"stop", 0},
    {"setmocktime", 0},
    {"getaddednodeinfo", 0},
    {"setgenerate", 0},
    {"setgenerate", 1},
    {"getnetworkhashps", 0},
    {"getnetworkhashps", 1},
    {"sendtoaddress", 1},
    {"sendtoaddressix", 1},
    {"settxfee", 0},
    {"getreceivedbyaddress", 1},
    {"getreceivedbyaccount", 1},
    {"listreceivedbyaddress", 0},
    {"listreceivedbyaddress", 1},
    {"listreceivedbyaddress", 2},
    {"listreceivedbyaccount", 0},
    {"listreceivedbyaccount", 1},
    {"listreceivedbyaccount", 2},
    {"getbalance", 1},
    {"getbalance", 2},
    {"getblockhash", 0},
    {"move", 2},
    {"move", 3},
    {"sendfrom", 2},
    {"sendfrom", 3},
    {"listtransactions", 1},
    {"listtransactions", 2},
    {"listtransactions", 3},
    {"listaccounts", 0},
    {"listaccounts", 1},
    {"walletpassphrase", 1},
    {"walletpassphrase", 2},
    {"getblocktemplate", 0},
    {"listsinceblock", 1},
    {"listsinceblock", 2},
    {"sendmany", 1},
    {"sendmany", 2},
    {"addmultisigaddress", 0},
    {"addmultisigaddress", 1},
    {"createmultisig", 0},
    {"createmultisig", 1},
    {"listunspent", 0},
    {"listunspent", 1},
    {"listunspent", 2},
    {"getblock", 1},
    {"getblockheader", 1},
    {"gettransaction", 1},
    {"getrawtransaction", 1},
    {"createrawtransaction", 0},
    {"createrawtransaction", 1},
    {"signrawtransaction", 1},
    {"signrawtransaction", 2},
    {"sendrawtransaction", 1},
    {"sendrawtransaction", 2},
    {"gettxout", 1},
    {"gettxout", 2},
    {"lockunspent", 0},
    {"lockunspent", 1},
    {"importprivkey", 2},
    {"importaddress", 2},
    {"verifychain", 0},
    {"verifychain", 1},
    {"keypoolrefill", 0},
    {"getrawmempool", 0},
    {"estimatefee", 0},
    {"estimatepriority", 0},
    {"prioritisetransaction", 1},
    {"prioritisetransaction", 2},
    {"spork", 1},
    // disabled until removal of the legacy 'masternode' command
    //{"startmasternode", 1},
    {"reservebalance", 0},
    {"reservebalance", 1},
    {"setstakesplitthreshold", 0},
    {"autocombinerewards", 0},
    {"autocombinerewards", 1},
    {"obfuscation", 1},
};

class CRPCConvertTable
{
private:
    std::set<std::pair<std::string, int> > members;

public:
    CRPCConvertTable();

    bool convert(const std::string& method, int idx)
    {
        return (members.count(std::make_pair(method, idx)) > 0);
    }
};

CRPCConvertTable::CRPCConvertTable()
{
    const unsigned int n_elem =
        (sizeof(vRPCConvertParams) / sizeof(vRPCConvertParams[0]));

    for (unsigned int i = 0; i < n_elem; i++) {
        members.insert(std::make_pair(vRPCConvertParams[i].methodName,
            vRPCConvertParams[i].paramIdx));
    }
}

static CRPCConvertTable rpcCvtTable;

/** Non-RFC4627 JSON parser, accepts internal values (such as numbers, true, false, null)
 * as well as objects and arrays.
 */
UniValue ParseNonRFCJSONValue(const std::string& strVal)
{
    UniValue jVal;
    if (!jVal.read(std::string("[")+strVal+std::string("]")) ||
        !jVal.isArray() || jVal.size()!=1)
        throw runtime_error(string("Error parsing JSON:")+strVal);
    return jVal[0];
}

/** Convert strings to command-specific RPC representation */
UniValue RPCConvertValues(const std::string &strMethod, const std::vector<std::string> &strParams)
{
    UniValue params(UniValue::VARR);

    for (unsigned int idx = 0; idx < strParams.size(); idx++) {
        const std::string& strVal = strParams[idx];

        // insert string value directly
        if (!rpcCvtTable.convert(strMethod, idx)) {
            params.push_back(strVal);
        } else {
            // parse string as JSON, insert bool/number/object/etc. value
            params.push_back(ParseNonRFCJSONValue(strVal));
        }
    }

    return params;
}
